CN104271285A - Neck-down feeder - Google Patents
Neck-down feeder Download PDFInfo
- Publication number
- CN104271285A CN104271285A CN201380022559.8A CN201380022559A CN104271285A CN 104271285 A CN104271285 A CN 104271285A CN 201380022559 A CN201380022559 A CN 201380022559A CN 104271285 A CN104271285 A CN 104271285A
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- CN
- China
- Prior art keywords
- feed arrangement
- feeding cylinder
- region
- thickness
- sidewall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/084—Breaker cores
Abstract
The invention provides a neck-down feeder of unitary construction for use in metal casting. The feeder comprises a body portion integrally formed at a first end thereof with a tapered base portion for mounting on a mould pattern. The body portion and the base portion are defined by a continuous sidewall having one or more regions of weakness arranged such that the feeder is breakable in use whereby at least a part of the base portion detaches from the body portion and is received therein.
Description
Technical field
The present invention relates to a kind of constriction feed arrangement for utilizing casting mold to carry out metal casting operation.
Background technology
In typical casting process, motlten metal is injected in the preformed mold cavity of the shape limiting foundry goods.But shrink when the metal solidifies, this will cause shrinkage cavity, and described shrinkage cavity causes unacceptable flaw then in final foundry goods.In casting industry, this is well-known problem, and solves described problem by being used in mold forming process to be integrally formed to the feeding cylinder in mold or rising head.Each feeding cylinder provides extra (the usually encapsulating) volume or chamber that are communicated with mold cavity, thus motlten metal also can enter in feeding cylinder.In the curing process, the motlten metal in feeding cylinder flow back in mold cavity to compensate the contraction of foundry goods.Importantly, metal in feeding cylinder chamber keeps the molten condition of longer time than the metal in mold cavity, feeding cylinder like this is formed as highly adiabatic or normally heat release more, thus when contacting with motlten metal, extra heat is generated with retardation of curing.
After the solidification and removing of molding material, keep being attached to foundry goods and must being removed from the useless residual metal in feeding cylinder chamber.For the ease of the removing of residual metal, in the design being commonly referred to constriction feeding cylinder, feeding cylinder chamber can come to a point gradually towards its base portion (i.e. the end near mold cavity of feeding cylinder).When applying to fiercely attack to residual metal, the most weak some place near mold is being separated with foundry goods (this process is considered to chase usually) by described residual metal.Also expect in the region that the path that the small space on foundry goods can allow feeding cylinder to be positioned at foundry goods can be limited by contiguous features.
Feeding cylinder can be applied directly on the surface of mold cavity, or described feeding cylinder can be combined with breaker core.Breaker core is only have hole at its center and the disk (typically the core of resin sand core or ceramic core or feeding cylinder material) of refractory material between mold cavity and feeding cylinder.The diameter running through the hole of breaker core is designed to the diameter of the inner chamber (the not necessarily taper of described inner chamber) being less than feeding cylinder, thus phenomenon of chasing appears at the breaker core place near mold.
Molding sand can be divided into two primary categories; Chemical bond (based on organic or inorganic binding agent) or clay engage.The moulding sand binder of chemical bond is typical self-hardening property system; wherein binding agent and chemical hardening agent mix with sand and binding agent and adhesive and curing agent start to react immediately, but this course of reaction is slowly to be enough to allow sand shaping and allow that enough sclerosis are for removing with cast subsequently near template.Clay engages moulding system and uses clay and water as binding agent, and may be used for " moist " or undried state, and be commonly called damp sand.Damp sand mixture is only not easy flowing or mobile under stress, and therefore can compress damp sand near template and make mold have enough strength characteristicies, vibrations, vibration, extruding and violent various combinations of pressing are used to the mold that high productivity produces uniform strength.Moulding convention is well-known, and is illustratively described in the 12nd chapter, the 13rd chapter of Foseco iron casting factory workman handbook (ISBN075064284 X).Be considered to from the canonical process of hard or self-hardening process normally in continuous mixer by sand together with liquid resin or silicate binder and suitable catalyst mix.The sand of mixing is compacted by vibration and being combined in around template of suddenly pressing subsequently, and is allowed subsequently and maintain the original state, and during this period of time, catalyst starts the sclerosis of reacting with binding agent to impel sand mixture.When mold reaches exercisable intensity, described mold removes from template and continues sclerosis until chemical reaction completes.
When feeding cylinder is used, described feeding cylinder is placed in template and the sand of mixing is applied in around described feeding cylinder.Typically, the mold with template and feeding cylinder (multiple feeding cylinder) is the parts being filled with the mixing sand being compacted in template and around feeding cylinder (multiple feeding cylinder).Further, mixing sand is added to fill mold rapidly, and sand is compacted, allows sclerosis and removes from template subsequently.Because the poor or insufficient compacting of sand around the base portion of feeding cylinder can cause poor and some defects of surface smoothness, so problem often occurs in foundry goods.When using constriction feeding cylinder or taper feeding cylinder, fall into causing being formed between template and tapered sidewalls (neck) below being difficult to sand to be as one man compacted into necessary intensity, this problem becomes particularly important.
The solution that EP-A-1184104 provides is two-piece type feeding cylinder.In molding operation process, pressure is applied to the top of feeding cylinder, and parts of described feeding cylinder parts are flexible enters in another parts.Parts in feeding cylinder parts always keep in touch with template, and outside upper feeding cartridge unit to be pressed on towards template movement and by molding sand below described parts and adjacent mold plate.But problem goes out the initial gap of self-sustaining two mold (feeding cylinder) parts and required protuberance or flange.In modeling process, these little protuberances fracture (thus allow scaling operation occur) and droping to completely in molding sand.After a period of time, these parts will be deposited in molding sand.When parts are manufactured by exothermic material, this problem is particularly serious.Moisture from sand can react with exothermic material (such as metallic aluminium) potentially, produces and causes potential small-sized expansion defect.
Summary of the invention
The object of this invention is to provide and may be used for casting molding operation and slow down the feeding cylinder with the improvement of the known one or more problems be associated.
According to a first aspect of the invention, a kind of constriction feeding cylinder of the unitary construction for metal casting is provided, described constriction feeding cylinder comprises main part, described main part is integrally formed with the tapered base portion for being arranged on mold plate at its first end place, described main part and described base part are limited by the continuous side walls with the region that one or more thickness reduces, the region that described thickness reduces is configured such that feeding cylinder can rupture in use, being separated with described main part at least partially and being received in described main part of base part whereby, and wherein the fracture strength of constriction feeding cylinder is no more than 5kN.
Therefore the invention provides a kind of be configured to monomer-type and be suitable for such as at a kind of feeding cylinder that process that is molded and that upwards clash into ruptures when power is applied to feeding cylinder.The layout in the region that one or more intensity is more weak causes sidewall in the fracture of preposition place, at least part of base part to be separated from main part, thus prevents the fracture uncontrollably of the part of base part and casting template contacts.Because always apply pressure towards mold plate in moldings formed therefrom process, therefore the main part of feeding cylinder is towards casting template movement when broken, because the separated part of base part and casting template contacts, therefore it keeps fixing.
Feeding cylinder of the present invention is designed to rupture when in the molding process in routine, pressure is applied to feeding cylinder.Therefore, feeding cylinder of the present invention and such as EP1775045 and DE202007005575U1 describe those are different for the feeding cylinder in high-pressure moulding systems.This feeding cylinder is designed to stand high pressure, ruptures in a large number to avoid in use sidewall.Therefore feeding cylinder is made up of high density material, and typically has the crushing strength more than 20kN.
In certain embodiments, the region that one or more intensity is more weak is arranged in the base part of feeding cylinder at least partly.In certain embodiments, the base part that the more weak region of all intensity in sidewall is arranged in feeding cylinder is completely present in.
Wherein base part is provided to become to be integrated with main part and the monomer-type feeding cylinder that can separate with this main part is more favourable than the known double-body bike feeding cylinder that stretches, because construct this monomer-type feeding cylinder more easily and cost is lower.Monomer-type feeding cylinder can also be avoided remaining on compression process Fracture and polluting the requirement of the protuberance of molding sand.
Be to be understood that, cause sidewall to rupture and cause base part to be separated with main part and main part towards casting template movement and receiving base part and the large young pathbreaker of required pressure and power affects by multiple factor, these factors comprise shape and the thickness of manufactured materials in the more weak region (multiple region) of the particularly intensity of feeding cylinder and sidewall.Similarly be to be understood that understanding, independent feeding cylinder designs according to expection application, the expecting pressure related to and feeding cylinder dimensional requirement.
In certain embodiments, fracture strength (namely make sidewall start rupture needed for power) be no more than 5kN, be no more than 3kN or be no more than 1.5kN.Be to be understood that fracture strength will always be less than the crushing strength of feeding cylinder.
By means of the region that one or more thickness reduces, feeding cylinder of the present invention is suitable in use fragmenting into roughly two pieces.In certain embodiments, these two pieces comprise the feeding cylinder of at least 90%, at least 95%, at least 98% or at least 99% altogether.Fall into the amount of the feeding cylinder material of molding sand when feeding cylinder sidewall ruptures thus be reduced to minimum.
In some embodiments of the invention, the main part of feeding cylinder has substantial cylindrical, and the peripheral surface of main part has and is fixed at cross section on the longitudinal axis of feeding cylinder, circular, and thus comprises external peripheral surface.Alternatively, feeding cylinder can be substantially elliptical or circle rectangle.The cross section of the peripheral surface of main part can change along the longitudinal axis of feeding cylinder, or alternatively main part can have the peripheral surface cross section of constant.The base part of feeding cylinder can be roughly truncated cone, and the area of the cross section of base part distad reduces from main part.
Should be appreciated that the interior angle between the tapered sidewalls of base part and the longitudinal axis of feeding cylinder changes according to the application expected and requirement.If angle is too little, then will causes longer base part, and there is more uneven fracture.If angle is too large, then the sand mixed more is difficult to flowing and is more difficult to be pressed in below base part and around it in modeling process.
In a series of embodiments, the interior angular region between the tapered sidewalls of base part and the longitudinal axis of feeding cylinder is from 15 degree to 50 degree, from 20 degree to 40 degree or from 25 degree to 30 degree.
In one embodiment, the region that certain intensity in sidewall is more weak or the region that the more weak region of each intensity is reduced by thickness provide.Such as, the thickness of the sidewall in the region that one or more intensity is more weak can be less than 70%, 60%, 50%, 40% or even 30% of the thickness of the remainder of the sidewall of main part and/or base part (or sidewall thickness change relative to average thickness place).
The suitable sidewall thickness at the region that certain intensity is more weak or the more weak region place of each intensity will depend on the crushing strength of feeding cylinder at least in part.Such as, the feeding cylinder that intensity is very strong can require that sidewall is in the more weak region relative thin of intensity, for rupturing under moulding pressure.
In one embodiment, that the region that intensity is more weak is extended by the whole circumference around sidewall, that thickness reduces band is formed.
In certain embodiments, the region that thickness reduces is arranged by the groove in sidewall, raceway groove or one or more otch or cut-out.Groove, raceway groove or otch or cut-out (multiple otch or cut-out) can be arranged on the inner surface of sidewall or/and in outer surface.Groove, raceway groove or otch or cut-out (multiple otch or cut-out) can extend around the whole circumference of sidewall.In certain embodiments, independent groove, raceway groove or otch or cut-out can be set up in the sidewall.In other embodiments, two or more grooves, raceway groove or otch or cut-out can be provided.Groove, raceway groove or otch or cut-out (multiple otch or cut-out) can be arranged in the base part of feeding cylinder at least in part, such as, boundary between base part and main part.Alternatively, groove, raceway groove or otch or cut-out (multiple otch or cut-out) fully can be arranged in base part.
Should be appreciated that, except the region that one or more intensity is more weak, sidewall can have the thickness roughly the same with the thickness in all parts of feeding cylinder.Alternatively, the sidewall of base part can have the thickness different from the thickness of the sidewall of main part.In certain embodiments, the thickness of the sidewall of base part is greater than the thickness of the sidewall of main part, or vice versa.
Thus the more weak region of intensity is arranged to predictable with the consistent fracture for providing when being placed under pressure in the shape handles process in routine feeding cylinder, thus feeding cylinder fragments into roughly two pieces can make in two pieces one piece of mode be received in another block.
Feeding cylinder of the present invention can be formed by following material maybe can comprise following material: any refractory insulating material and/or exothermic material maybe can form the mixture of known feeding cylinder; Technical staff can select suitable material for each concrete requirement.The feature of feeding cylinder is not specifically limited, and the feature of feeding cylinder can be that such as insulate, heating or the two combination described.Typically, feeding cylinder is made up of refractory filler (such as fiber, cenosphere and/or microparticle material) and the mixture of binding agent.Heating feeding cylinder needs fuel (normally aluminum or aluminum alloy) and normally initator/emulsion further.In addition, feeding cylinder can be formed by any known method forming feeding cylinder, such as around a model and in outer mold inside, vacuum forms the slurry of feeding cylinder material, subsequently by heating to remove water to feeding cylinder and hardening or solidify described feeding cylinder material.Alternatively, feeding cylinder can be formed (core box driving) by suddenly pressing material or impact in core box, and via making reactant gas or catalyst by feeding cylinder with hardening binder, or apply heat, with the feeding cylinder that hardens through use heating core box or by moving forward into heating in barrel to baking box.Suitable feeding cylinder mixture comprise such as by puddling and the manufacture of core box driving, carried out those mixtures of selling with trade mark KALMIN and KALMINEX by Foseco.
The density of feeding cylinder depends on both methods of mixture and manufacture.In one embodiment, the density of feeding cylinder is no more than 1.5gcm
-3, 1.0gcm
-3or 0.7gcm
-3.In one embodiment, the density range of feeding cylinder is from 0.8gcm
-3to 1.0gcm
-3or from 0.5gcm
-3to 0.7gcm
-3.
In one embodiment, overall constriction feeding cylinder has open top.In some applications, feeding cylinder may further include and prevents from molding sand from landing in modeling process entering lid in feeding cylinder and foundry goods chamber or covering.Lid can be made up of the material comprising different mixtures identical with feeding cylinder.In certain embodiments, feeding cylinder can comprise moulding pin in addition, the end of described moulding pin be received in extension by lid (i.e. blind hole) or completely by lid in the medium pore of its end face.In mold forming process, when rupture occur time and pressure impel the main part of feeding cylinder towards casting template movement time, moulding pin through medium pore (thrusting in the end face of lid in blind hole situation), and guarantees that the main part of feeding cylinder moves towards mould board along equidirectional when not departing from longitudinal axis.This guarantees that base part keeps contacting completely with mold plate, and sand is pressed on below main part equably.
Accompanying drawing explanation
Now with reference to accompanying drawing and present invention is described by the method for example, in the drawing:
Fig. 1 schematically shows the cross section of the feeding cylinder according to one embodiment of the invention;
The cross section of the feeding cylinder of Fig. 1 after Fig. 2 is shown schematically in and applies pressure and feeding cylinder fracture;
Fig. 3 schematically shows the cross section of feeding cylinder according to another embodiment of the present invention;
Fig. 4 schematically shows the cross section of the feeding cylinder of the Fig. 1 be combined with lid and moulding pin; And
Fig. 5 schematically shows the cross section according to the feeding cylinder of one embodiment of the invention before modifying to feeding cylinder.
Detailed description of the invention
Fig. 1 illustrates the feeding cylinder 10 be arranged on mould 28, and described feeding cylinder 10 comprises the continuous side walls 12 being defined for the chamber 14 receiving motlten metal.Although sidewall 12 is continuous print, can think that sidewall 12 comprises two parts: the generally tubular upper side wall 12a limiting the circular cross section of main part 10a, and the lower wall 12b of the roughly truncated cone of restriction base part 10b.In the illustrated embodiment, the thickness of lower wall 12b is greater than the thickness of upper side wall 12a substantially.
Sidewall 12 has outer surface 16, and this outer surface 16 is parallel to feeding cylinder 10 longitudinal axis along most of length of main part 10a from the top of main part 10a extends and bottom subsequently from the region of the bottom near main part 10a to base part 10b inwardly comes to a point gradually towards the longitudinal axis A of feeding cylinder 10.
Upper side wall 12a has inner surface 18, and this inner surface 18 is parallel to the longitudinal axis A of feeding cylinder 10 thus can limits cylindrical cavity region 14a.Therefore will understand, the most thickness of upper side wall 12a is certain, and has (outside) taperer in its bottom end.
Lower wall 12b has inner surface 20, this inner surface 20 is predominantly parallel to the conical section of outer surface 16, thus frustum of a cone body cavity area 14b can be limited, but the restriction of this inner surface 20 under the bottom place of base part outwards launches to limit in cavity region 14b.In the illustrated embodiment, the interior angle between the longitudinal axis A of inner surface 20 and feeding cylinder is 27 degree.After casting, this region causes being formed in the recess in the residual metal in feeding cylinder, and is convenient to residual metal and is chased.
The top of base part 10b extends and is limited by the interconnective annular surface 22 in upper end of the inner surface 20 of the lower end of the inner surface 18 with upper sidewall area 12a and base part 10b.Right angle is limited between annular surface 22 and inner surface 18.
The structure being to be understood that above cause sidewall 12 to have region that thickness 24 significantly reduces or band.The whole circumference that this region 24 moves into barrel 10 extends.In the illustrated embodiment, this region 24 is reduced to 40% of the thickness of about upper side wall 12a at the thickness at its narrowest some place.The region that the region 24 that thickness reduces provides intensity more weak, make when power is applied to feeding cylinder 10 in the direction of arrow F, sidewall 12 ruptures and base part 10b is separated with main part 10a.Sidewall 12 causes the roughly vertical fracture in the direction defining the power that being roughly parallel to shown in the part as limited by dotted line B1 and B2 is applied in around the structure in the more weak region 24 of intensity.The vertical fracture of feeding cylinder 10 causes having the most disengaging of the base part 10b of the external diameter of the internal diameter of the upper cylindrical cavity 14a being not more than main part 10a.Therefore, when more multiple pressure power is applied to feeding cylinder 10 to general, as shown in Figure 2, when main part 10a is towards casting template movement, the part of base part 10b is accommodated in the cylindrical cavity 14a of main part 10a.When main part 10a moves down along the direction of force, side and the sand 30 of mixing in region above mold plate 28 are further compressed and compacting under the cone.
Fig. 3 illustrates another embodiment of the feeding cylinder 100 comprising the continuous side walls 112 limiting chamber 114.Embodiment as shown in Figure 1, sidewall 112 comprises the generally tubular upper side wall 112a of the circular cross section limiting main part 100a, and the lower wall 112b of the roughly truncated cone of restriction base part 100b.
Sidewall 112 has inner surface 118, and this inner surface 118 is parallel to feeding cylinder 100 longitudinal axis A from the top of main part 100a extends to the top of base part 100b, thus limits cylindrical cavity region 114a.The roughly bottom of inner surface 118 from the top of base part 100b to base part 100b inwardly comes to a point gradually towards the longitudinal axis A of feeding cylinder 100, thus limits frustum of a cone body cavity area 114b.The restriction of inner surface 118 under the bottom place of base part 100b outwards launches to limit in cavity region 114b.After casting, this region causes being formed in the recess in the residual metal in feeding cylinder, and is convenient to residual metal and is chased.
Sidewall 112 has outer surface 116, and this outer surface 116 is parallel to feeding cylinder 100 longitudinal axis A from the top of main part 100a extends and partly extends to base part 110b.Therefore be to be understood that the thickness of upper side wall 112a is constant.Outer surface 116 inwardly comes to a point near the top of base part 100b gradually to the bottom end of base part 100b towards the longitudinal axis A of feeding cylinder 100.The conical section of outer surface 116 is cross-section by the annular surface 122a and periphery 122b limiting right angle groove or step in lower wall 112b together.
Groove in the outer surface 116 of lower wall 112b in base part near the region causing thickness significantly to reduce with the tie-point place of main part or be with 124.The whole circumference that the band 124 that this thickness reduces moves into barrel 100 extends.As the embodiment of Fig. 1, the region that the region 124 that this thickness reduces provides intensity more weak, makes when power is applied to feeding cylinder 100 in the direction of arrow F, and lower wall 112b ruptures and crosses over the portion fractures defined between dotted line B1 and B2.Again, when main part 100a is along the direction of power F be applied in towards template movement, the vertical fracture of feeding cylinder 100 causes the most separation being accommodated in the base part 100b in the cylindrical cavity 114a of main part 100a subsequently.Main part 100a allows well to compress and compacting the mixed sand 30 above mold plate 28 by having annular surface 122a at its base portion place.
Fig. 4 illustrates the feeding cylinder 10 with lid 40.Lid 40 has the groove or blind hole 42 that hold supporting pin 50, and described supporting pin 50 for keeping feeding cylinder 40 in position before molding operation and in molding operation process on mould 28.The setting of groove 42 in lid 40 causes lid to have thinner part 44.
Supporting pin has main body 52a and narrower top section 52b, is substantial cylindrical both described.Main body 52a has screw thread (not shown) at its base portion place, and main body 52a is fixed on the suitable position in prodger 55 by described screw thread, and described prodger 55 is positioned in template 28 then.When pressure is applied to top and the lid 40 of feeding cylinder 10 in the direction of arrow F, feeding cylinder main body 10a and lid 40 are parallel to longitudinal axis A along the direction of mold plate 28 and do not move down with departing from longitudinal axis A.This moves and impels the top section 52b of pin 52 to move by groove 42 and the thinner part 44 piercing through lid 40.Landing in modeling process except preventing molding sand enters except feeding cylinder and mold cavity, produces to piercing through of lid 40 hole that when permission is cast, the mold gas of generation is released simply by pulling.
Example
As shown in Figure 5, the feeding cylinder 60 (being appointed as " ZTA1 ") with the tubular body portion 62 being integrally formed with truncated cone base part 64 is made up of KALMINEX heating slurry by using conventional vacuum forming technology.Form 1 illustrates the size of feeding cylinder.Tie-point place between base portion and main part, madial wall be worn away 6 or 12mm with the region providing thickness to reduce.
Form 1
To amended ZTA1 feeding cylinder operative norm compressed detected.Form 2 illustrates result.For comparing, also show the fracture strength for the dissimilar feeding cylinder in high pressure moulding production line provided by applicant.
Form 2
| Feeding cylinder | Mean intensity (kN) |
| ZTA1(6mm) | 1.87 1 |
| ZTA1(12mm) | 0.93 1 |
| Contrast feeding cylinder X | 23-34 |
| Contrast feeding cylinder Y | 33-40 |
| Contrast feeding cylinder Z | ＞50 |
1.the value for ZTA1 feeding cylinder illustrated is fracture strength, namely makes feeding cylinder fragment into one of them part and is received in two predetermined portions in inside another part and required power.Will be appreciated that contrast feeding cylinder does not have " fracture " intensity, because when enough power is applied in, these feeding cylinders can not fragment into two parts limited but fragment into many fragments.Therefore the intensity of the feeding cylinder compared be " crushing " intensity.
When pressurised, the avalanche of ZTA1 feeding cylinder, make the base part of feeding cylinder and the body portion of feeding cylinder from and be received in the main body of feeding cylinder.Perform each detection in, as expected, feeding cylinder in the region that thickness reduces around its circumferential fracture.Each fracture that all can realize comparatively cleaning, only discharges little feeding cylinder material granule.
Find that the fracture strength of ZTA1 feeding cylinder is less than 3kN.As shown in Table 2, find that the fracture strength of the contrast feeding cylinder be used in high pressure moulding production line is higher significantly.
Claims (14)
1. the constriction feed arrangement for the unitary construction of metal casting, described feed arrangement comprises main part, described main part is integrally formed with the tapered base portion for being arranged on mold plate at its first end place, described main part and described base part are limited by the continuous side walls with the region that one or more thickness reduces, the region that described thickness reduces is configured to described feed arrangement and can ruptures in use, being separated with described main part at least partially and being received in described main part of described whereby base part, and the fracture strength of wherein said feed arrangement is no more than 5kN.
2. feed arrangement according to claim 1, the region that the described one or more thickness in wherein said sidewall reduce is arranged in the base part of described feed arrangement at least in part.
3. feed arrangement according to claim 2, the region that the described one or more thickness in wherein said sidewall reduce fully is arranged in the base part of described feed arrangement.
4., according to any feed arrangement described in front claim, the fracture strength of wherein said feed arrangement is no more than 3kN.
5. the feed arrangement according to any previous claim, the region that wherein said thickness reduces or the continuous band that the thickness that the region that each thickness reduces is extended by the whole circumference around described sidewall reduces are formed.
6., according to any feed arrangement described in front claim, the thickness of the sidewall in the region of the region that wherein said thickness reduces or the minimizing of each thickness is less than 70% of the thickness of the remainder of the sidewall of described main part and/or described base part.
7. feed arrangement according to claim 6, the thickness of the sidewall in the region that wherein said intensity is more weak or the more weak region of each intensity is less than 50% of the thickness of the remainder of the sidewall of described main part and/or described base part.
8., according to any feed arrangement described in front claim, the region that wherein said thickness reduces is provided by the groove in described sidewall, raceway groove or one or more otch or cut-out.
9., according to any feed arrangement described in front claim, the region that wherein said one or more thickness reduces is arranged and makes described feed arrangement in use to fragment into roughly two pieces.
10., according to any feed arrangement described in front claim, comprise lid further.
11. feed arrangements according to claim 10, comprise moulding pin further, and the end of described moulding pin is received in the medium pore partially or even wholly extending through described lid.
12. according to any feed arrangement described in front claim, and wherein said feed arrangement has 0.8gcm
-3to 1.0gcm
-3density.
13. according to any feed arrangement described in front claim, and wherein said feed arrangement comprises mixture or the component of heating.
14. 1 kinds of feed systems comprising breaker core and the feed arrangement as described in any one in claim 1 to 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12250104.2A EP2659996B1 (en) | 2012-04-30 | 2012-04-30 | Feeder sleeve |
| EP12250104.2 | 2012-04-30 | ||
| PCT/GB2013/051103 WO2013164596A1 (en) | 2012-04-30 | 2013-04-30 | Neck-down feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104271285A true CN104271285A (en) | 2015-01-07 |
| CN104271285B CN104271285B (en) | 2016-10-12 |
Family
ID=46832110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380022559.8A Active CN104271285B (en) | 2012-04-30 | 2013-04-30 | Constriction feed arrangement and constriction feed system |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US9737928B2 (en) |
| EP (1) | EP2659996B1 (en) |
| JP (1) | JP6158310B2 (en) |
| KR (1) | KR101976527B1 (en) |
| CN (1) | CN104271285B (en) |
| AU (1) | AU2013255616B2 (en) |
| BR (1) | BR112014024631B1 (en) |
| DE (1) | DE202012102546U1 (en) |
| ES (1) | ES2541636T3 (en) |
| MX (1) | MX342028B (en) |
| WO (1) | WO2013164596A1 (en) |
| ZA (1) | ZA201405621B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475523A (en) * | 2015-09-02 | 2017-03-08 | 福塞科国际有限公司 | Feed system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD872781S1 (en) * | 2018-04-13 | 2020-01-14 | Foseco International Limited | Breaker core |
| USD989016S1 (en) | 2020-12-03 | 2023-06-13 | Samsung Electronics Co., Ltd. | Television receiver |
| USD976855S1 (en) | 2020-12-03 | 2023-01-31 | Samsung Electronics Co., Ltd. | Television receiver |
| DE102021104435A1 (en) | 2021-02-24 | 2022-08-25 | Chemex Foundry Solutions Gmbh | Vertically split feeder for use in casting metals in molds and method of making same |
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|---|---|---|---|---|
| EP1184104B1 (en) * | 2000-08-08 | 2004-12-01 | Chemex Gmbh | Feeder insert |
| EP1775045A2 (en) * | 2005-10-14 | 2007-04-18 | Hofmann Ceramic GmbH | Feeder insert for a casting mold |
| DE202007005575U1 (en) * | 2007-04-18 | 2007-06-14 | GTP Schäfer Gießtechnische Produkte GmbH | Feeder head insert for metal casting molds has tubular upper section and tapering lower section which is fitted at its tip with tapering metal ring |
| CN202162337U (en) * | 2011-06-10 | 2012-03-14 | 勤威(天津)工业有限公司 | Non-riser casting device for automotive wheel axle castings |
| CN202377488U (en) * | 2011-11-07 | 2012-08-15 | 陈显鹏 | Metal shell covering casting die |
| CN202571176U (en) * | 2012-04-18 | 2012-12-05 | 中国南方航空工业(集团)有限公司 | Casting head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4471629B2 (en) * | 2002-11-13 | 2010-06-02 | 花王株式会社 | Manufacturing method of parts for casting production |
| GB0325134D0 (en) | 2003-10-28 | 2003-12-03 | Foseco Int | Improved feeder element for metal casting |
| DE102005025701B4 (en) * | 2005-06-04 | 2007-03-08 | GTP Schäfer Gießtechnische Produkte GmbH | Feeder with yielding feeder base |
-
2012
- 2012-04-30 EP EP12250104.2A patent/EP2659996B1/en active Active
- 2012-04-30 ES ES12250104.2T patent/ES2541636T3/en active Active
- 2012-07-10 DE DE202012102546U patent/DE202012102546U1/en not_active Expired - Lifetime
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2013
- 2013-04-30 BR BR112014024631-9A patent/BR112014024631B1/en active IP Right Grant
- 2013-04-30 WO PCT/GB2013/051103 patent/WO2013164596A1/en active Application Filing
- 2013-04-30 AU AU2013255616A patent/AU2013255616B2/en not_active Ceased
- 2013-04-30 KR KR1020147028369A patent/KR101976527B1/en active IP Right Grant
- 2013-04-30 CN CN201380022559.8A patent/CN104271285B/en active Active
- 2013-04-30 JP JP2015509489A patent/JP6158310B2/en active Active
- 2013-04-30 MX MX2014011234A patent/MX342028B/en active IP Right Grant
- 2013-04-30 US US14/374,644 patent/US9737928B2/en active Active
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- 2014-07-30 ZA ZA2014/05621A patent/ZA201405621B/en unknown
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| EP1184104B1 (en) * | 2000-08-08 | 2004-12-01 | Chemex Gmbh | Feeder insert |
| EP1775045A2 (en) * | 2005-10-14 | 2007-04-18 | Hofmann Ceramic GmbH | Feeder insert for a casting mold |
| DE202007005575U1 (en) * | 2007-04-18 | 2007-06-14 | GTP Schäfer Gießtechnische Produkte GmbH | Feeder head insert for metal casting molds has tubular upper section and tapering lower section which is fitted at its tip with tapering metal ring |
| CN202162337U (en) * | 2011-06-10 | 2012-03-14 | 勤威(天津)工业有限公司 | Non-riser casting device for automotive wheel axle castings |
| CN202377488U (en) * | 2011-11-07 | 2012-08-15 | 陈显鹏 | Metal shell covering casting die |
| CN202571176U (en) * | 2012-04-18 | 2012-12-05 | 中国南方航空工业(集团)有限公司 | Casting head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106475523A (en) * | 2015-09-02 | 2017-03-08 | 福塞科国际有限公司 | Feed system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013255616A1 (en) | 2014-08-21 |
| BR112014024631B1 (en) | 2019-10-01 |
| AU2013255616B2 (en) | 2017-04-20 |
| CN104271285B (en) | 2016-10-12 |
| JP6158310B2 (en) | 2017-07-05 |
| KR20150005918A (en) | 2015-01-15 |
| DE202012102546U1 (en) | 2012-08-07 |
| US20150034801A1 (en) | 2015-02-05 |
| WO2013164596A1 (en) | 2013-11-07 |
| ES2541636T3 (en) | 2015-07-22 |
| MX342028B (en) | 2016-09-12 |
| EP2659996B1 (en) | 2015-04-15 |
| ZA201405621B (en) | 2015-12-23 |
| MX2014011234A (en) | 2014-10-15 |
| US9737928B2 (en) | 2017-08-22 |
| KR101976527B1 (en) | 2019-05-09 |
| EP2659996A1 (en) | 2013-11-06 |
| JP2015515929A (en) | 2015-06-04 |
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